Inner liner sizing material for semi-steel-wire radial ply tire

A technology for radial tires and inner liners, which is applied in the production of rubber materials for tire inner liners, can solve problems such as unguaranteed production demand, price and supply fluctuations of halogenated butyl rubber, and achieve good processing performance

Inactive Publication Date: 2012-06-13
SICHUAN TYRE & RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inner liner rubber of the tire requires not only good airtight performance and good aging resistance, but also good physical viscosity and good co-vulcanization performance with other rubber materials. At present, the industry generally Halogenated butyl rubber is used and other general-purpose rubbers are used to produce inner liner rubber. Since there are only two halogenated butyl rubbers in the world, the price and supply of halogenated butyl rubber often fluctuate greatly and cannot be guaranteed. normal production needs

Method used

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  • Inner liner sizing material for semi-steel-wire radial ply tire
  • Inner liner sizing material for semi-steel-wire radial ply tire

Examples

Experimental program
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Effect test

Embodiment 1

[0012] raw material invention compound Chlorobutyl rubber 55.0 SBR1712 20.5 Imported 20# natural rubber 25.0 Modified chlorosulfonated rubber 5.0 light calcium carbonate 25.0 203 resin 4.0 RT-40FE 6.0 stearic acid 1.0 Antiaging agent RD 2.0 Carbon black N660 58.0 Aromatic oil 2.5 Active Zinc Oxide 4.0 Accelerator NS 1.5 accelerator TBzTD 0.2 Insoluble sulfur IS-6005 0.5 Vulcanizing agent WP5 0.7

[0013] In this example, imported natural rubber (code SMR20#), chlorinated butyl rubber (code CIIR1066), styrene-butadiene rubber (code SBR1712), modified chlorosulfonated rubber (code CSM), leveling agent resin (code RT -40FE) is first added to the internal mixer for mixing. Since the rubber material is composed of multiple rubber types, in order to fully ensure the quality of the mixed rubber and the airtight performance of the vulcanized rubber, the mixing time of a master ...

Embodiment 2

[0018] raw material invention compound Chlorobutyl rubber 60.0 SBR1712 20.5 Imported 20# natural rubber 20.0 Modified chlorosulfonated rubber 5.0 light calcium carbonate 25.0 203 resin 4.0 RT-40FE 6.0 stearic acid 1.0 Antiaging agent RD 2.0 Carbon black N660 58.0 Aromatic oil 2.5 Active Zinc Oxide 4.0 Accelerator NS 1.5 accelerator TBzTD 0.2 Insoluble sulfur IS-6005 0.5 Vulcanizing agent WP5 0.7

[0019] In this example, imported natural rubber (code SMR20#), chlorinated butyl rubber (code CIIR1066), styrene-butadiene rubber (code SBR1712), modified chlorosulfonated rubber (code CSM), leveling agent resin (code RT -40FE) is first added to the internal mixer for mixing. Since the rubber material is composed of multiple rubber types, in order to fully ensure the quality of the mixed rubber and the airtight performance of the vulcanized rubber, the mixing time of a master ...

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Abstract

The invention relates to an inner liner extrusion sizing material produced by applying novel modified synthetic rubber instead of airtight rubber to a semi-steel-wire radial ply tire. Key points are that: the inner liner extrusion sizing material is prepared from a plurality of raw materials in a formula including natural rubber (No.SMR20#), chlorinated butyl rubber (CIIR1066), styrene-butadiene rubber (SBR1712), modified chlorosulfonated rubber (CSM), zinc oxide, magnesium oxide, stearic acid, precipitated calcium carbonate, resin (RT-40FE) serving as a homogenizing agent, an anti-ageing agent (RD), carbon black (N660), an accelerant NS, an accelerant TBzTD, insoluble sulfur IS-6005 and a vulcanizing agent WP5.

Description

[0001] Technical field [0002] The invention relates to the application of a new type of modified synthetic rubber instead of the traditional airtight rubber in the extruded compound for the inner liner of a semi-steel radial tire, and the compound is used for the production of the compound for the inner liner of the tire. Background technique [0003] The inner liner rubber of the tire requires not only good airtight performance and good aging resistance, but also good physical viscosity and good co-vulcanization performance with other rubber materials. At present, the industry generally Halogenated butyl rubber is used and other general-purpose rubbers are used to produce inner liner rubber. Since there are only two halogenated butyl rubbers in the world, the price and supply of halogenated butyl rubber often fluctuate greatly and cannot be guaranteed. normal production needs. It is particularly important to find a rubber with good air tightness to replace halogenated bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L9/06C08L7/00C08L15/00C08K13/02C08K3/04C08K3/26C08K3/22C08K5/01B60C1/00
Inventor 杨齐张勋民卿勤罗建刚高秋英李冬余萍钟建武陈键熊国华冯友林
Owner SICHUAN TYRE & RUBBER CO LTD
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